Now - Men's Virility Power

So I tried this Now suppliment. I have not experienced any real benifit from it. Has any one else had any luck with this product? If so, what was your dosage and what did you feel? The ingredients are as follows:

If I recall, the epimedium dose is ok, but everything else is woefully under. I think you'd need 500mg of the muira, a ****ton of maca (peruvians eat it by the lb), 500-1000mg trib (depending on quality and potency), etc.